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AM1808 or L138 LCDK - 3G USB modem support

Jignesh Patel1
Intellectual 275 points
Other Parts Discussed in Thread: AM1808, OMAPL138

Hi,

I want to add 3G USB modem support in either AM1808 or L138 LCDK.

Is it possible ?

As per linux kernel module requirement it having all required modules.

1 )options.c (USB driver for GSM and CDMA modems driver)

2) cdc-acm.c (USB Modem (CDC ACM) support)

3) ppp_async.c (PPP support for async serial ports)

From User space just We need to have following packages, my question is for am1808 linux, do we need all those packages, if yes from where should I get compiled version for AM1808 ?

1) usb_modemswitch app and library

2) Wvdial app

3) modemmanager  (Is it required for android only or it also need for AM1808 linux ?)

4) Networkmanage (Is it required for android only or it also need for AM1808 linux ?)

-----

Regards,

JIgnesh

  • 0
    TI__Guru**** 393215 points

    Moving this to the AM1X forum.

  • 0
    TI__Mastermind 43955 points

    Hi JIgnesh,

    JIgnesh said:
    From User space just We need to have following packages, my question is for am1808 linux, do we need all those packages, if yes from where should I get compiled version for AM1808 ?

    We may not be able to say that those mentioned as user space packages are needed or not. It depends upon your project requirement.

    I do not think, you will get a compiled version of those. Instead, you have to get the source code of those packages and cross compile it using toolchains for AM1808.

    http://processors.wiki.ti.com/index.php/GSG:_Building_Software_Components_for_OMAP-L1/AM1x#What.27s_next.3F

    The Davinci PSP version 3.22 ( which was tested on OMAPL138 ) uses the linux version of 3.3.0. You may have to check whether those modemmanager and network manager are needed for Linux 3.3.0 or what ever the linux version you are planning to port to the target(AM1808).

    And also, as this is device forum, you will get more inputs if posted on Linux forum.


    Regards,

    Shankari

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    Please click the Verify Answer button on this post if it answers your question.
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  • 0 in reply to Shankari G
    Intellectual 275 points

    Thanks Shankari for quick response.

    I am planing to use ti-sdk-omapl138-lcdk-01.00.00.bz2 (it having linux kernel linux-3.1.10), which is provided with L138 LCDK from following link.

    http://software-dl.ti.com/dsps/dsps_public_sw/c6000/web/omapl138_lcdk_sdk/latest/index_FDS.html

    My end goal is to access internet web site from AM1808 using 3G dongle.

    Still I am not clear about user space packages,  are they mandatory or optional.

    Thanks.

  • 0 in reply to Jignesh Patel1
    TI__Guru** 116100 points

    Hi Jignesh,

    I want to add 3G USB modem support in either AM1808 or L138 LCDK.

    Is it possible ?

    Yes,

    From User space just We need to have following packages, my question is for am1808 linux, do we need all those packages, if yes from where should I get compiled version for AM1808 ?

    Download usbmodeswitch source & cross compile,

    1) Enable USB , modem and ppp support in linux kernel configuration (menuconfig)

    2) Use cross compiled "usb_modeswitch" binary for converting from mass storage device to Modem device,

    http://www.draisberghof.de/usb_modeswitch/#download

    Ex:

    $ usb_modeswitch -v <vendor id of ur  modem> -p <product id of ur modem> -M < msg code of as per ur vendor&product code>

    Or you can write udev rules for all supported modems.

    I have tried myself to cross compile the wvdail, its tough some what with lot of dependencies.

    call "pppd' binary to connect internet.

    Ex:

    $ pppd call gprs

    Put script named "gprs " for accessing internet through APN commands.

    3) modemmanager  (Is it required for android only or it also need for AM1808 linux ?)

    4) Networkmanage (Is it required for android only or it also need for AM1808 linux ?)

    This packages are not required.

     

  • 0 in reply to Titusrathinaraj Stalin
    Intellectual 275 points

    Thanks Titus for more clarity and quick replay, this answer servers my questions answer.

    Now I can go ahead from this point.

    Thanks a lot.

    Best Regards, Jignesh

  • 0 in reply to Jignesh Patel1
    Intellectual 330 points

    Hi Jignesh,

    Did you get your 3G USB Modem working?

    Regards,

    Reino